Question

determine the domain of the following graph:

Explanation:

Step1: Recall domain definition

The domain of a graph is the set of all x - values for which the function is defined.

Step2: Identify x - value range

Looking at the graph, the left - most x - value is just before - 2 (open - circle) and the right - most x - value is just before 9 (open - circle).

Answer:

$(-2,9)$